Information processing apparatus and information processing method

Abstract

The present invention provides an information processing apparatus enables the operation such that the relation between the image displayed on the display unit and the operation of the user is close to the actual operation and an information processing method. The information processing apparatus includes a display control unit which displays an image at a display unit, a closeness value acquisition unit which acquires a closeness value regarding contact or closeness between an operation entity and a surface of the display unit, an area detection unit which performs a ternary process to the closeness value and detects a first area and a second area being different from the first area in accordance with the ternary-processed closeness value, and a centroid position calculation unit which calculates respective centroid positions of the first area and the second area.

What is claimed is: 
     
         1 . An information processing apparatus comprising:
 circuitry configured to
 detect an operation of a user based on at least one of proximity between an operation surface and an operation tool, and pressure applied to the operation surface by the operation tool, 
 detect a direction of the operation tool corresponding to an object, and 
 control a display of the object based on the direction of the operation tool, 
   wherein the display of the object is controlled to be zoomed in or zoomed out in accordance with a rotation direction of the operation tool while rotating the operation tool.   
     
     
         2 . The information processing apparatus according to  claim 1 , wherein the circuitry is further configured to detect the direction of the operation tool by determining brightness values of incident light received by the operation surface and converting the received light into electric signals. 
     
     
         3 . The information processing apparatus according to  claim 2 , wherein the circuitry is further configured to detect the direction of the operation tool by detecting a first area of the operation tool having a first determined brightness value above a first brightness threshold and a second area of the operation tool having a second determined brightness value above a second brightness threshold, wherein the first area is different from the second area and the first brightness threshold is higher than the second brightness threshold in order to determine that the first area is closer to the operation surface than the second area. 
     
     
         4 . The information processing apparatus according to  claim 3 , wherein the circuitry is further configured to detect the direction of the operation tool by determining a direction of a line connecting the first area and the second area. 
     
     
         5 . The information processing apparatus according to  claim 1 , wherein the circuitry is further configured to detect electrostatic capacity between the operation tool and the operation surface, and to calculate variation of the electrostatic capacity as the proximity. 
     
     
         6 . An information processing method, performed via at one processor, the method comprising:
 detecting an operation of a user based on at least one of proximity between an operation surface and an operation tool, and pressure applied to the operation surface by the operation tool;   detecting a direction of the operation tool corresponding to an object; and   controlling a display of the object based on the direction of the operation toot,   wherein the display of the object is controlled to be zoomed in or zoomed out in accordance with a rotation direction of the operation tool while rotating the operation tool.   
     
     
         7 . The information processing method according to  claim 6 , wherein the direction of the operation tool is detected by determining brightness values of incident light received by the operation surface and converting the received Eight into electric signals. 
     
     
         8 . The information processing method according to  claim 7 , wherein the direction of the operation tool is detected by detecting a first area of the operation tool having a first determined brightness value above a first brightness threshold and a second area of the operation tool having a second determined brightness value above a second brightness threshold, wherein the first area is different from the second area and the first brightness threshold is higher than the second brightness threshold in order to determine that the first area is closer to the operation surface than the second area. 
     
     
         9 . The information processing method according to  claim 8 , wherein the direction of the operation tool is detected by determining a direction of a line connecting the first area and the second area. 
     
     
         10 . The information processing method according to  claim 6 , further comprising:
 detecting electrostatic capacity between the operation tool and the operation surface; and   calculating variation of the electrostatic capacity as the proximity.   
     
     
         11 . A non-transitory computer-readable medium having embodied thereon a program, which when executed by a computer causes the computer to execute a method, the method comprising;
 detecting an operation of a user based on at least one of proximity between an operation surface and an operation tool, and pressure applied to the operation surface by the operation tool;   detecting a direction of the operation tool corresponding to an object; and   controlling a display of the object based on the direction of the operation tool,   wherein the display of the object is controlled to be zoomed in or zoomed out in accordance with a rotation direction of the operation tool while rotating the operation tool.   
     
     
         12 . The non-transitory computer-readable medium according to  claim 11 , wherein the direction of the operation tool is detected by determining brightness values of incident light received by the operation surface and converting the received light into electric signals. 
     
     
         13 . The non-transitory computer-readable medium according to  claim 12 , wherein the direction of the operation tool is detected by detecting a first area of the operation tool having a first determined brightness value above a first brightness threshold and a second area of the operation tool having a second determined brightness value above a second brightness threshold, wherein the first area is different from the second area and the first brightness threshold is higher than the second brightness threshold in order to determine that the first area is closer to the operation surface than the second area. 
     
     
         14 . The non-transitory computer-readable medium according to  claim 13 , wherein the direction of the operation tool is detected by determining a direction of a line connecting the first area and the second area. 
     
     
         15 . The non-transitory computer-readable medium according to  claim 11 , wherein the executed method further comprises:
 detecting electrostatic capacity between the operation tool and the operation surface; and   calculating variation of the electrostatic capacity as the proximity.